A “strong warming trend” is expected across the Bay Area early this week, and some inland cities may experience their first 90-degree day of the year, according to the National Weather Service.

A ridge of high pressure is expected to strengthen over California on Tuesday and Wednesday, sending temperatures soaring into the mid- to upper-80s in several inland cities, including San Jose, Concord and Livermore, according to the National Weather Service. Temperatures near the ocean are expected to be mostly in the 70s.

Gilroy and Livermore are forecast to reach 90 degrees on Tuesday, according to the weather service. Concord is expected to hit 90 on Wednesday.

“What we’re looking at across the Bay Area, away from the coast, are temperatures to be about 13 to 18 degrees above average,” on Tuesday, said Drew Peterson, a meteorologist with the weather service.

Get ready for warmer temperatures. A strong warming trend is expected during the first half of the work week. Temperatures are forecast to reach their peak at the coast and in the coastal valleys on Tuesday, and in the interior valleys on Wednesday. #CAwxpic.twitter.com/z6UcP4JZYi

Mark Gomez has worked for the Mercury News since 1992, including the past ten years as a reporter on the breaking news/public safety team. He is a South Bay native and graduate of San Jose State University.